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Comment Re:Space is still hard (Score 1) 73

I'm sure you're familiar with the countdown protocol, all the pre-flight checks, etc. These power up a range of subsystems, motors, etc, so that everything can be verified prior to ignition itself. The complete sequence takes a very long time. Under normal flight conditions, you can't check for absolutely everything (instrumentation is mass, and mass is the enemy) but there's still a lot. However, during an engine test, you can pack a lot more sensors in.

This is where you'd want to be spotting loose connections, pumps that aren't quite even, pressures that aren't as steady as they should be, vibrations that shouldn't be there or do not match expectations, turbulent flows, and so on.

At ignition, it takes between 3-6 seconds to go from stopped to 90% thrust. For humans, that's near-instant. For a computer sensor that's operating a million samples per second, that's 3-6 million readings. A computer performing a billion calculations per second shouldn't have much difficulty in comparing 3 million readings against model predictions and determining if both the values themselves and the rate of change at each point such a sensor exists are all good. Emergency shutdowns during those first 3 seconds are perfectly viable.

Vibrations are the ones that are likely the most interesting, because those are likely to change before something breaks, not sure how fast you can make infrared sensors, but that's also an area where things are likely to alter before point of failure.

Comment The timeline is of note. (Score 1) 42

It seems worth noting that one of the items in Wyden's rather pointed inquiry is the fact that the feasibility of doing this is known to have been demonstrated for the DoD by outside people familiar with it at least as early as 2016; so while this is the first confirmed case of adversarial use it's the outcome of at least a decade of just ignoring the problem; and a significantly longer period of failing to reasonably anticipate the problem. It's not like there's No Such Agency you could ask about "how could you spy on someone with the internet even?" if you wanted to know how well or poorly readily available information matched a nation state signals intelligence apparatus.

Purely as a matter of cellphones being expensive and somewhat tepidly capable in the before times I assume that there was a period within living memory when merely telling people not to Gordon Gekko on their DynaTAC where the russians can hear you was good enough; but that would have clearly and rapidly been getting less true for at least a quarter century.

Comment Definitely a bad look... (Score 4, Interesting) 36

The whole 'responsible disclosure' preaching and the not-terribly-subtle threats seem particularly bad given that there's an entire industry of actively more dangerous people who are not only treated as legal but actively courted by state agents and cops(and often even less savory customers, though they tend to be cagey about those); the ones who actively seek to keep vulnerabilities quiet so that they can continue to sell exploit tools and services based on them. Throwing zero days on github isn't ideal vs. getting them fixed; but it gets them fixed faster than if Cellebrite wants to hang on to a bitlocker bypass or Trenchant, and L3Harris Technologies Company, wants to keep selling 'network investigative techniques' that can bypass default windows defender configurations or whatever the situation is.

From the outside it's hard to know whether MS actually mistreated the researcher badly enough to justify their displeasure(the consensus appears to be that MSRC was never the best to deal with and has actively gone downhill; but this person's position seems significantly angrier than average) or whether they are perhaps wound a little tight; but implying that their legal status is the same as people actively running attacks against user systems is blatantly false and totally ignores the class of researchers who do actively run attacks while being treated as respectable.

It's a particularly bad look when at least Facebook got into a public legal fight with the NSO group over their nerd-merc work against their users; not like that actually solved the problem of attacks on cellphones; but it was an all-too-rare case of industry pushing back against the 'respectable' arms dealers; and not one that MS has an analog to.

Comment Re:Maybe the world we made is a bit shit (Score 1) 112

The evolutionary pattern was created because food was unreliable and energy demands were unpredictable - but high, due to the large brain. (Possibly larger than it is today, but there seems to be conflicting data there.)

Now, rationing extreme energy foods is certainly one option, but it's not a particularly satisfactory one as the energy demands vary by profession and by time within a profession. You simply can't predict what people will need and there's no way to standardise this.

There is a second option. Intense focus is impossible for beyond about 45-90 minutes at a stretch, or for more than 3-5 hours in a day. Meetings degrade intelligence, according to psychological research, so you want to minimise those. After about 7 hours, work will mostly have negative value. If you increase the amount of high physical activity for at least an hour a day (and potentially longer if the amount of soft work is minimal in the job) then you will improve physical fitness and general health, without having to substantially alter diet. However, that still only gets you so far, because a poor diet still impacts physical and mental health, and can lead to brain decline. (It's a big factor in poor brain health in children in schools.)

A third option, then, is to actually improve meal quality in schools and for workplaces to work with the food industry to provide cheaper/easier access to high quality foods that actually taste good, not merely sensible energy foods. This would seem to be target solution, with in-work exercise to supplement it.

Comment Re:Space is still hard (Score 1) 73

Whilst that is perfectly true, it is questionable as to whether it is useful or necessary. If a rocket is being tested, then logically it should be heavily instrumented. If it's heavily instrumented, and the instruments are themselves competently designed, there is no obvious reason why the engine can't be auto-cut when problems start to arise. And they will have arisen long long before the explosion.

The values may have independently been "within permitted range", but if the pattern of those values doesn't make sense, then something has gone wrong. There may well also have been subsystems that were insufficiently instrumented.

"They're the experts" is often an irrelevancy - we lost TWO shuttles and crews to political decisions, when the experts on the ground were ignored. DeHavilland lost endless Comets to basically the same blunder, when political decisions by management over the reality of metal fatigue overrode analysis by actual experts. Improper monitoring and inadequate computer controls will be from a burden of costs and time (both political constraints, not engineering constraints). As, indeed, will improperly manufactured parts, improper software (anyone rememebr Arianne IV's mishap due to buggy software?), improperly-defined constraints, and inadequate quality controls.

The experts are usually either well aware of mistakes or afforded no means of detecting them.

I see no reason not to think this was anything other than a management blunder.

Comment Re:Why was original post modded ??? (Score 1) 143

This raises a very important question. If the CIA are taking shortcuts and making assumptions about anything, we should not be making assumptions ourselves that the CIA aren't doing the same elsewhere. I am, however, still waiting for biolabs and WMDs to turn up in Iraq - something for which they appear to have ALSO taken one person's unsupported word for. They also ratted out their own officers in retaliation for questioning the existence of "yellowcake" (that turned out not to exist).

I'd be wary of claiming there was a pattern, but... They do seem awfully incompetent.

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